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PTMC for Patients with Mitral Stenosis and Severe Mitral Valve Deformity:Evaluation by two-dimensional Doppler echocardiographic method Yuki Yoshida 1 , Shigeru Kubo 1 , Shunichi Tamaki 2 , Kanji Inoue 3 1Department of Clinical Laboratory, Takeda Hospital 2Department of Cardiology, Takeda Hospital 3Department of Cardiovascular Surgery, Takeda Hospital Keyword: 経皮経静脈的僧帽弁交連裂開術 , 高度硬化性弁病変 , percutaneous transvenous mitral commissurotomy , severe valve deformity pp.379-384
Published Date 1995/4/15
DOI https://doi.org/10.11477/mf.1404901039
  • Abstract
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To evaluate the effectiveness and safety of per-cutaneous transvenous mitral commissurotomy (PTMC) for mitral stenosis patients with surgical high risk and severe valve deformity, we performed PTMC in 16 severe mitral stenosis patients with an echo score of≧10.

There were 9 men and 7 women, aged 42 to 76 years. After PTMC, the mitral valve area significantly in-creased from the mean 0.7±0.2 to 1.2±0.2(cm2). As a result of the increase in the valve area, left atrial pressure significantly decreased from the mean 24.5± 7.6 to 14.6±6.8 (mmHg), and cardiac output significant-ly increased from the mean 3.6±0.9 to 4.1±1.0 (l/min). In the NYHA functional class, 12 of 16 patients showed symptomatic improvement and 4 patients showed no symptomatic worsening.

The technical success rate of PTIVIC was 100%. In this study, PTMC was able to be performed without embolic complications in 3 patients with thrombi in the left atrium documented by transesophageal echocardio-graphy. Following PTMC, there was no marked increase in the degree of mitral regurgitation. This study has demonstrated that PTMC can be performed safely and is of clinical use even in treating mitral stenosis patients with severe valve deformity.


Copyright © 1995, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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